Reverse: 1999 Version 4.0.0 "Gatekeeper" went live on 2026-09-24 as part of the 2026 Box Parade celebration; the official site lists the current version as 4.0.0 while the official store listing has moved to 4.0.1 .
Applicable version: 4.0.0 "Gatekeeper" (launched 2026-09-24; store listing has moved to 4.0.1)
Reverse: 1999 4.0.0 build checkpoints
Insight or psychube first
The order is core Insight first, psychube right behind it. The launch-era character Red Arrow grows into "Hunt-Medal Witch Red Arrow" this version and becomes the core damage dealer of the new Insight system . Raise the core's Insight tier first, then the psychube, because supports only amplify a core that is already built (reasoning).
How much does attribute countering add
Attribute countering adds roughly 30% damage , which means swapping to the right counter in Artificial Somnambulism is usually safer than forcing one lineup through every stage. Rotating units is the cheapest way to bank stars (reasoning).
Reverse: 1999 psychubes and resonance
Where psychube materials come from
Psychube materials come from Pneuma Analysis, which yields Order Image and Awakening materials . Raise the core to the Insight 2 threshold first, then concentrate on Pneuma Analysis; reversing the order slows overall progress.
| Stage | Drops | Priority |
|---|---|---|
| Pneuma Analysis | Order Image, Awakening, psychube mats | High |
| Numismatic Aesthetics | Sharpodonty (gold) | Medium |
| Dust Motion | Dust (EXP) | Medium |
| Harvest Season | Cohen cuddly, Cohen lady | Low |
How to spend resonance
Resonance sits after "core Insight then psychube" in priority. When psychube and resonance levels lag, the rotation visibly stutters, so top up the psychube rather than pushing levels further (reasoning).
Reverse: 1999 4.0.0 Artificial Somnambulism floors
How many stars for the shallow zone
The shallow Somnambulism zone refreshes weekly at 05:00 on Monday, and banking 100 cumulative stars lets you claim the full weekly reward directly . Floors 1 to 5 have low build requirements, while floors 6 to 10 want one absolute core at Insight 2 plus two secondary units.
When does the deep zone reset
The deep zone holds 36 stars, and its reward can be claimed only once per device reset, which happens at 05:00 on the 1st and 16th of each month . Clear the deep zone right after a reset so a whole cycle is not missed.
Reverse: 1999 stage farming order
Why Pneuma Analysis comes first
Pneuma Analysis supplies the core psychube materials and has two high-value runs a day . Because psychube upgrades lift overall power more than low-tier materials do, it ranks first.
When to top up gold and EXP
Once the core's Insight and psychube are in place, top up Sharpodonty and Dust through Numismatic Aesthetics and Dust Motion. Harvest Season is only worth farming when wilderness buildings need an upgrade, making it the lowest priority (reasoning).
Reverse: 1999 build order and stamina plan
| Priority | Item | Why |
|---|---|---|
| High | Red Arrow Insight 2 | Core of the Insight system |
| High | Pneuma Analysis for psychubes | Biggest power gain |
| Medium | Generic supports | Amplify the core |
| Medium | Generic sustain | Keeps runs stable |
| Low | Wilderness buildings and Harvest Season | Long-term investment |
How to split stamina
The stamina order is "core Insight, then Pneuma Analysis, then gold and EXP, then wilderness buildings". The logic is that core Insight and psychubes decide which stages you can clear, while wilderness buildings are a long-term investment (reasoning).
When to upgrade wilderness buildings
Wilderness buildings such as the Dust Clocktower and Sharpodonty Bazaar produce steady EXP and gold, so upgrade them once the core's Insight and psychube are done; otherwise they eat the current version's stamina (reasoning).
Reverse: 1999 4.0.0 Insight rotation notes and stall fixes
How the Insight rotation works
Red Arrow's Insight form is built on a loop of casting a skill, recovering resources and casting again. Supports exist to fill the gaps between those casts, which is why the core's Insight tier comes first: a core that cannot complete the loop makes support investment irrelevant.
What to do when the rotation stalls
When casts start lagging, the cause is usually a lagging psychube or resonance rather than a low character level. Top up the psychube first, then resonance, and only then push character level (reasoning). Treating a stalled rotation as a level problem is the most common detour in 4.0.0.
How to read resonance versus psychube
Resonance amplifies the loop; the psychube raises its floor. When both are behind, raise the floor first, because a higher floor keeps the loop running in more stages, while resonance only pays once the loop already completes (reasoning).
How to budget Pneuma Analysis runs
Use both daily high-value Pneuma Analysis runs before spending stamina anywhere else. Skipping them to farm gold faster slows the core's psychube curve, which is the single biggest lever on which stages you can clear this version.
What to do with spare resources
Once the core's Insight and psychube are settled, spare stamina goes to Sharpodonty and Dust, then to the second unit. Wilderness buildings wait until both are done, because they return value slowly and would otherwise crowd out the current version's farming (reasoning).
Reverse: 1999 4.0.0 team-building around the core
Which supports to pair
Pair the Insight core with a generic support that amplifies damage and a sustain unit that keeps the loop alive. The support matters more than a second damage dealer, because the core already supplies the damage once its loop completes.
What to do before each reset
Before the 1st and 16th resets, spend remaining stamina on Pneuma Analysis and bank any unclaimed rewards. Entering a reset with unspent stamina wastes the daily high-value runs that only refresh with the day.
How to build the second unit
Build the second unit only after the core clears the deep zone, because a second unit that cannot clear stages adds no value while splitting materials across two half-built cores slows both (reasoning).This plan is revised as 4.0.0 content continues. The latest version is on GameHub.
Reverse: 1999 FAQ
Q: Which stat should I raise first in 4.0.0?
A: The core character's Insight tier (Insight 2 is the target), then psychubes through Pneuma Analysis, since both decide which stages you can clear.
Q: How many stars give the full shallow-zone reward?
A: 100 cumulative stars, after which the weekly training report grants the full star reward .
Q: When does the deep zone reset?
A: Device reset is at 05:00 on the 1st and 16th of each month, resetting stages and rewards .
Q: Which farming stage comes first?
A: Pneuma Analysis, which supplies psychube materials and has two high-value runs a day.
Action checklist
- Push Red Arrow to Insight 2 before psychubes.
- Spend stamina on Pneuma Analysis for Order Image and Awakening.
- Rotate units by attribute in Artificial Somnambulism to bank 100 stars.
- Clear the deep zone right after the 1st and 16th resets.
- Leave wilderness buildings for later so they do not crowd out current stamina.